I don't know what this frame is and your budget but FtWelder just did a great job of lengthing two steerers for me. I got some $10 Tange steerers from Nova Cycle supply and sent them to Frank with the forks. Excellent job.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk